<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
</head>

<body>
    <div id="app">
        <ul>
            <li v-for="(item, index) in dataList" :key="item.id">
                {{item.content}}
            </li>
        </ul>
        <button @click="Go">走一走</button>
    </div>
    <script src="./vue.js"></script>
    <script>
        const app = new Vue({
            el: "#app",
            data: {
                dataList: [{
                    id: 1,
                    content: "美女"
                }, {
                    id: 2,
                    content: "帅哥"
                }, {
                    id: 3,
                    content: "程序员"
                }, ],
            },
            methods: {
                Go() {
                    this.dataList.push(this.dataList.shift());
                }
            }
        });
    </script>
</body>

</html>